2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/cast.h>
14 * The input and output encrypted as though 64bit cfb mode is being used.
15 * The extra state information to record how much of the 64bit block we have
16 * used is contained in *num;
19 void CAST_cfb64_encrypt(const unsigned char *in, unsigned char *out,
20 long length, const CAST_KEY *schedule,
21 unsigned char *ivec, int *num, int enc)
23 register CAST_LONG v0, v1, t;
24 register int n = *num;
25 register long l = length;
27 unsigned char *iv, c, cc;
37 CAST_encrypt((CAST_LONG *)ti, schedule);
57 CAST_encrypt((CAST_LONG *)ti, schedule);
72 v0 = v1 = ti[0] = ti[1] = t = c = cc = 0;